US 12,449,669 B2
LIDAR transmitter and receiver optics
Blaise Gassend, East Palo Alto, CA (US); Ralph Shepard, Menlo Park, CA (US); and Pierre-Yves Droz, Los Altos, CA (US)
Assigned to Waymo LLC, Mountain View, CA (US)
Appl. No. 17/435,601
Filed by Waymo LLC, Mountain View, CA (US)
PCT Filed Mar. 2, 2020, PCT No. PCT/US2020/020648
§ 371(c)(1), (2) Date Sep. 1, 2021,
PCT Pub. No. WO2020/180786, PCT Pub. Date Sep. 10, 2020.
Claims priority of provisional application 62/813,867, filed on Mar. 5, 2019.
Prior Publication US 2022/0155457 A1, May 19, 2022
Int. Cl. G01S 17/931 (2020.01); G01S 7/481 (2006.01); G01S 17/89 (2020.01); G02B 27/09 (2006.01); H01S 5/00 (2006.01)
CPC G02B 27/0916 (2013.01) [G01S 7/4813 (2013.01); G01S 7/4814 (2013.01); G01S 7/4816 (2013.01); G01S 7/4817 (2013.01); G01S 17/89 (2013.01); G01S 17/931 (2020.01); G02B 27/0922 (2013.01); G02B 27/0966 (2013.01); H01S 5/005 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A lidar system comprising:
a transmitter comprising:
a light emitter device configured to emit emission light, wherein a surface of the light emitter device which emits the emission light defines a reference plane;
a fast axis collimation (FAC) lens optically coupled to the light emitter device, wherein a cylindrical axis of the FAC lens is at a non-zero angle with respect to the reference plane; and
a transmit lens optically coupled to the FAC lens; and
a receiver comprising:
a receive lens; and
a light detector optically coupled to the receive lens.